linux/include/clocksource
Marek Szyprowski 3b212f9d70 clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type
Samsung PWM timer might be used as a clock source on some legacy systems.
When PREEMPT_RT is enabled on ARM, regular spinlock is converted to a
sleeping lock (mutex-based), which must not be used in atomic context
such as hard interrupt handlers. Switch the samsung_pwm_lock to the
raw_spinlock, which remains a true non-sleeping spinlock even
under PREEMPT_RT.

Fixes: 7aac482e62 ("clocksource: samsung_pwm_timer: Make PWM spinlock global")
Fixes: f11899894c ("clocksource: add samsung pwm timer driver")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Uwe Kleine-König <ukleinek@kernel.org>
Link: https://patch.msgid.link/20260713085653.1145015-1-m.szyprowski@samsung.com
2026-08-13 18:13:15 +02:00
..
arm_arch_timer.h clocksource/drivers/arm_arch_timer_mmio: Switch over to standalone driver 2025-09-23 12:31:50 +02:00
hyperv_timer.h hyperv: Switch from hyperv-tlfs.h to hyperv/hvhdk.h 2025-01-10 00:54:21 +00:00
pxa.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
samsung_pwm.h clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type 2026-08-13 18:13:15 +02:00
timer-davinci.h clocksource/drivers/davinci: Add support for clockevents 2019-06-25 20:46:14 +02:00
timer-goldfish.h clocksource/drivers: Add a goldfish-timer clocksource 2022-04-11 11:48:01 +02:00
timer-riscv.h RISC-V: KVM: Add timer functionality 2021-10-04 16:07:16 +05:30
timer-ti-dm.h clocksource/drivers/timer-ti-dm: Make timer_get_irq static 2022-12-02 13:16:46 +01:00
timer-xilinx.h pwm: xilinx: Fix u32 overflow issue in 32-bit width PWM mode. 2024-06-03 13:07:56 +02:00